Your dog needs antioxidants to help promote a healthy immune system. This is why every IAMS™ dog formula contains optimal levels of these nutrients.
Antioxidants are important naturally occurring nutrients that help maintain your dog’s health by slowing the destructive oxidative process of cellular molecules. IAMS research is advancing antioxidant nutrients for senior dogs — and the benefit is improved immune function.
Discover how the antioxidants in IAMS products can benefit your dog’s health in a number of ways.
Antioxidants are found naturally in the body and in plants such as fruits and vegetables. Common antioxidants include vitamin A, vitamin C, vitamin E and certain compounds called carotenoids (like lutein and beta-carotene). When antioxidants are part of a dog’s complete diet, they can provide the following benefits:
As cells function normally in the body, they produce damaged molecules called free radicals. These free radicals are highly unstable and steal components from other cellular molecules, such as fat, protein or DNA, thereby spreading the damage.
This damage continues in a chain reaction, and entire cells soon become damaged and die. This process is called peroxidation. Peroxidation is useful because it helps the body destroy cells that have outlived their usefulness, and it kills germs and parasites. However, when left unchecked, peroxidation also destroys or damages healthy cells.
Antioxidants help prevent widespread cellular destruction by willingly donating components to stabilize free radicals. More importantly, antioxidants return to the surface of the cell to stabilize rather than damage other cellular components.
When there are not enough antioxidants to hold peroxidation in check, free radicals begin damaging healthy cells, which can lead to problems. For example, free radical damage to immune cells can lead to an increased risk of infections.
Recent research has examined the benefits of certain antioxidants on the immune response of dogs, and the results of these studies indicated that antioxidants are important in helping dogs maintain a healthy immune system.
IAMS adult and puppy formulas contain optimal levels of antioxidants such as:
| Antioxidant | Source | Function |
|---|---|---|
| Vitamin E | Plant oil extract and tocopherols | Optimizes immune system’s T-cell activation |
| Beta-carotene | Vitamin premix, corn meal, chicken by-product meal and chicken fat | Optimizes types of cell present in the blood, increases antibody levels in the blood |

The energy requirements of a puppy can be nearly twice those of an adult dog. This means that a puppy might not have the stomach capacity to eat enough food to meet his needs unless the food is specially formulated.
When choosing a puppy food, select one that provides a highly digestible, nutrient-dense, 100% complete premium formula for growth. Such high-quality formulas contain the vitamins, minerals, protein, fat and carbohydrates your dog needs for sound and healthy development. With a premium formula, your puppy may have:
Puppies grow fastest during the first six months of life, and because growth rates differ among breed sizes, you need a formula designed to address the needs of your puppy’s breed or size.
No two dogs are alike. So when choosing your pet's food, you'll want to take into consideration the dog's breed, size, age, weight, and lifestyle. Full growth will happen at around 1 to 2 years, with the exact age determined by your dog's breed—small-breed dogs mature faster than large-breed dogs. “Grown dogs, especially ones who are more athletic, will start to eat more quantities in one feeding,” says Madan Khare, DVM. “You want to limit his feeding to one or two times a day, depending on his activity level.” Exact quantities should be determined by consulting your vet or by reading the package labels (just remember to split a daily serving in half if you choose to feed the dog twice a day).
When transitioning your dog from puppy food to premium adult food you want to do it gradually. “Never change a dog's diet abruptly,” Khare says. Here's a schedule for transitioning your pet from puppy food to an adult dog food:
Daily exercise and a diet packed with high-quality protein from chicken, lamb, or fish and essential nutrients will keep him happy and healthy throughout his lifetime. Premium dry pet food has all of the daily nutrition your pet needs. It helps promote healthy teeth and gums, too.
“When it comes to feeding your dog human food, I have three words,” Khare says. “No. No. No.” Interfering with your pet's food regimen by frequent change in diet or nutritionally inadequate human food can disturb the animal's digestive system.
Always remember to pick premium, tailor-made dog food based on the life stage and unique needs of your pet.